Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52N04SW00103

Record: MDI52N04SW00103

General

Mineral Record Identification
Record Name(s) Peterson - Anomaly D - 1991
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1991-Mar-11
Date Last Modified 2022-Jun-28
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Fairlie

Latitude: 51° 1' 51.59"    Longitude: -93° 59' 39.02"

UTM Zone: 15    Easting: 430286.666   Northing: 5653742.055    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52N04SW

Point Location Description: N/A

Location Method: Conversion from MDI



Exploration History

1972: The Property was held by C.W. Peterson of Red Lake. 1972 - overburden stripping and 2 trenhes were completed - Ronka EM-16 survey completed - Two diamond drill holes completed.


Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Red Lake

Geological Age: Archean  

Metamorphism Type: Regional

Metamorphism Grade: Greenschist



Geology Comments

Dec 07, 2005 (K R Kettles) - GEOLOGICAL DESCRIPTION: The oourrence is located west of the Dome Stock and is underlain primarily by altered mafic volcanic rocks. These are composed of tuffs and flows. Pillow structures have been found that indicated the flow tops are to the northwest. Volcanic breccias have also been recognized in the area. Intruding into the volcanics are gabbroic to dioritic dikes. Foliation planes in the volcanic rocks strike approximately NW-SE and dip vertically. Several wide sulphide rich zones have been observed, which contain pyrite, pyrrhotite and chalcopyrite. DEPOSIT DESCRIPTION: A wide shear zone is located on the western end of the island, and it is believed to be the locus for the gold and silver mineralization. Several 3 to 5 cm quartz veins and numerous quartz-carbonate stringers have been noted from drill core. GEOPHYSICAL DATA: A strong EM conductor with good width was discovered and this probably represents a zone of sulphide mineralization.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Quartz Vein Host
Mafic Tuff 2 Mafic Tuff Tuff Adjacent
Mafic lava flow-unsubdivided 3 Flows Massive To Pillowed Adjacent
Mafic flow breccia 4 Volcanic Breccias Brecciated Adjacent
Gabbro 5 Gabbroic Dikes Near
Diorite 6 Diorite Dikes Near
Mylonite/Fault Gouge/Pseudotachylite 7 Shear Zone Host

Lithology Comments

Dec 07, 2005 (K R Kettles) - The oourrence is located west of the Dome Stock and is underlain primarily by altered mafic volcanic rocks. These are composed of tuffs and flows. Pillow structures have been found that indicated the flow tops are to the northwest. Volcanic breccias have also been recognized in the area. Intruding into the volcanics are gabbroic to dioritic dikes. Foliation planes in the volcanic rocks strike approximately NW-SE and dip vertically. Several wide sulphide rich zones have been observed, which contain pyrite, pyrrhotite and chalcopyrite. A wide shear zone is located on the western end of the island, and it is believed to be the locus for the gold and silver mineralization. Several 3 to 5 cm quartz veins and numerous quartz-carbonate stringers have been noted from drill core.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
2SilverEconomicOre
3ChalcopyriteEconomicOre
4PyriteEconomicOre
5PyrrhotiteEconomicOre
1QuartzEconomicGangue
CarbonateAlterationCarbonatization1WeakVeins
QuartzAlterationSilicification2MediumVeins
EpidoteAlterationEpidotization3MediumDisseminated

Mineralization Comments

Dec 07, 2005 (K R Kettles) - The oourrence is located west of the Dome Stock and is underlain primarily by altered mafic volcanic rocks. . Several wide sulphide rich zones have been observed, which contain pyrite, pyrrhotite and chalcopyrite: A wide shear zone is located on the western end of the island, and it is believed to be the locus for the gold and silver mineralization. Several 3 to 5 cm quartz veins and numerous quartz-carbonate stringers have been noted from drill core. MDI1 Data: GRADE - GRAB SAMPLE: 0.05 OPT AU. ALSO GOLD VALUES FROM DDH.(FROM OFR 5558).



Alteration Comments

Dec 07, 2005 (K R Kettles) - The mafic volcanics have been carbonatized, silicified and epidotized.




Mineral Record Details

References

File - Resident Geologist files AF RL 1972 Fairlie #27

Publication Number: AF RL 1972 Date: 1972

Author: Peterson, C.W.

Publisher Name:

Location: Red Lake RGP


File - Resident Geologist Files AF RL 1986 Fairlie #67, 78

Publication Number: AF RL 1986 Date: 1986

Author:

Publisher Name:

Location: Red Lake RGP


File - Resident Geologist files AF RL 1989 Fairlie #82

Publication Number: AF RL 1989 Date: 1989

Author:

Publisher Name:

Location: Red Lake RGP


Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2

Publication Number: OFR5558 Page: 475-476  Date: 1987

Author: Durocher M.E., Burchell P.S., Andrews A.J.

Publisher Name: Ontario Geological Survey

Location:


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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office